A six-metre tall lamp-post made from KGP and equipped with a small solar panel could hold enough energy to power itself throughout the evening, researchers say. "We have shown that KGP cement ...

This reflects the relative performance of the light producing its maximum output based on the same charging daylight/sunlight exposure time. This reflects attributes like mounting flexibility ...

If you walk the aisles of a dollar store one constant that you will see worldwide is the Chinese solar lamp. Your dollar gets you a white LED behind plastic, mounted on a spike to stick into the ...